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13,129

13,129 is a composite number, odd.

This number doesn't have a permanent NumberWiki page yet — what you see below is computed live. Pages get added to the permanent index when they're notable (years, primes, curated, etc.).
Arithmetic Number Deficient Number Gapful Number Odious Number Pernicious Number Recamán's Sequence Semiprime Squarefree

Properties

Parity
Odd
Digit count
5
Digit sum
16
Digit product
54
Digital root
7
Palindrome
No
Bit width
14 bits
Reversed
92,131
Recamán's sequence
a(48,017) = 13,129
Square (n²)
172,370,641
Cube (n³)
2,263,054,145,689
Divisor count
4
σ(n) — sum of divisors
13,840
φ(n) — Euler's totient
12,420
Sum of prime factors
710

Primality

Prime factorization: 19 × 691

Nearest primes: 13,127 (−2) · 13,147 (+18)

Divisors & multiples

All divisors (4)
1 · 19 · 691 · 13129
Aliquot sum (sum of proper divisors): 711
Factor pairs (a × b = 13,129)
1 × 13129
19 × 691
First multiples
13,129 · 26,258 (double) · 39,387 · 52,516 · 65,645 · 78,774 · 91,903 · 105,032 · 118,161 · 131,290

Sums & aliquot sequence

As consecutive integers: 6,564 + 6,565 682 + 683 + … + 700 327 + 328 + … + 364
Aliquot sequence: 13,129 711 329 55 17 1 0 — terminates at zero

Representations

In words
thirteen thousand one hundred twenty-nine
Ordinal
13129th
Binary
11001101001001
Octal
31511
Hexadecimal
0x3349
Base64
M0k=
One's complement
52,406 (16-bit)
In other bases
ternary (3) 200000021
quaternary (4) 3031021
quinary (5) 410004
senary (6) 140441
septenary (7) 53164
nonary (9) 20007
undecimal (11) 9956
duodecimal (12) 7721
tridecimal (13) 5c8c
tetradecimal (14) 4adb
pentadecimal (15) 3d54

Historical numeral systems

Babylonian (base 60)
𒁹𒁹𒁹 𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹 𒌋𒌋𒌋𒌋𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹𒁹
Egyptian hieroglyphic
𓂍𓆼𓆼𓆼𓍢𓎆𓎆𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺𓏺
Greek (Milesian)
͵ιγρκθʹ
Mayan (base 20)
𝋡·𝋬·𝋰·𝋩
Chinese
一萬三千一百二十九
Chinese (financial)
壹萬參仟壹佰貳拾玖
In other modern scripts
Eastern Arabic ١٣١٢٩ Devanagari १३१२९ Bengali ১৩১২৯ Tamil ௧௩௧௨௯ Thai ๑๓๑๒๙ Tibetan ༡༣༡༢༩ Khmer ១៣១២៩ Lao ໑໓໑໒໙ Burmese ၁၃၁၂၉

Digit at this position in famous constants

π — Pi (π)
Digit 13,129 = 7
e — Euler's number (e)
Digit 13,129 = 8
φ — Golden ratio (φ)
Digit 13,129 = 3
√2 — Pythagoras's (√2)
Digit 13,129 = 1
ln 2 — Natural log of 2
Digit 13,129 = 4
γ — Euler-Mascheroni (γ)
Digit 13,129 = 7

Also seen as

Unicode codepoint
Square Miri
U+3349
Other symbol (So)

UTF-8 encoding: E3 8D 89 (3 bytes).

Hex color
#003349
RGB(0, 51, 73)
IPv4 address

As an unsigned 32-bit integer, this is the IPv4 address 0.0.51.73.

Address
0.0.51.73
Class
reserved
IPv4-mapped IPv6
::ffff:0.0.51.73

Unspecified address (0.0.0.0/8) — "this network" placeholder.

Position in π

The digit sequence 13129 first appears in π at position 254,048 of the decimal expansion (the 254,048ordinal-suffix:th digit after the integer 3).

Search range: the first 1,000,000 fractional digits of π. Any 6-digit-or-shorter string is virtually guaranteed to appear in there — the more interesting signal is the position.